Spring suspension



Nov. 16 192s. 1,607,307-

A. D. ROBBINS srnme suspnnsxrm Filed 'August 14. 1924 s Sheets-Shunt 1 )C I i Nov. 16 1926.

Filed August 14, 1924 Nov. 16 1926. 1,607,307

A. D. ROBBINS SPRING SUSPEN SION Filed August 14, 1924 .5 Sheets-Sheet 5 hiy INVENTOR.

A TTORNEYS.

Patented Nov. 16, 1926.

UNITED STATES PATENT OFFICE.

A203 1). ROBBINS, OI NEW YORK, N. Y., ASSIGNOB TO INTERNATIONAL MOTOR CO run, or YORK, N. Y., A COBPORATIONQF DELAWARE.

SPRING SUSPENSION.

Application and au ust 14, 19514. smn'xo. 731,950.

This invention relates to spring suspension for vehicles and more particularly to a s ring suspension of motor propelled vehies having dual rear driving axles. Where it dual axles are employed, when direction is;

W provement in the spring suspension shown and described in the aforesaid application by a rearrangement of the co-operating elements anda simplification of the same and a strengthening of the structure to better 7 95 counteract the shocks and. stresses'impressed .,upon such a spring suspension in actual practice over roucgh andzluneven roadways under heavy a Accordingl a spring suspension is provided which inc udes a plu- TBD rality of springs connected with each other 1 and with the chassis and axle respectively and having yielding non-metallic connec-- :tions--interposed operatively between the Qr'espective springs and axles and. chassis 5' whereb adegreeof universal movement of the" a e with respect to. the chassis is af-" the respective ends of the forded in'order to provide a greater degree of rigldity without detracting in'any mannerfrom the compensation afforded by'the .sprin' suspension. It is also proposed to -'-.provi e a'transversestrengtheningelement .orsuitable truss extending between .fthe spring structures on the respective .sides'jof t e vehicle in substantially the" plane of pivotal movement thereof. In order that the invention may be clearly understood the same will now be described more fully in connection with theaccompanying drawings.

. illustrating a preferred of andin which:'

- Figure 1v is a fragmentary view in plan embodiment thereof th improved construction showinglthe;

Furthermore the lowermost part of the housing relation of the springs at opgositesides of the side frame members of't e chassis.

Figure 2 is a view inside elevation showing somewhat conventionally so much of the side frame member of a motor vehicle as is necessary for an, understanding of the sus ension thereof from dual axles in acco ance withthe improvements, parts being broken away in the interest of clearness.

' Figure 3 is a view, partly in section and partly in elevation taken in the planes indicated by the broken line 3-3 in Figure 1 and looking in the direction of the arrows.

The chassis side frame members a are to be supported, in the illustrated embodiment; on the dual axles b, c, respectively-which are illustrated as dead axles within; which live axles rotate in well known, manner. The side frame members a are/formed; as

is sometimes the case with a portion a of.

extended height 'rov1ded with cut-out portions 0 within w ich the axlesare d with suflicient clearance for vertica and.

longitudinal movements. The chassis frame is of course, suspended from the axles through a suitable suspension which in the illustratedembodiment comprises a lower Letters Patent of the United States, Ser.

No. 1,404,876 dated January 31, 1922. Such connections are illustrated as blocks pf yielding non-metallic material a which ring and are in turn retained within housings f respectively carried below the respective axles.

' A suitable casting formed integral with or secured in anyconvenient manner to theaxfe constitutes the housing f and is/formed with an open side f through whih the spring extends, a closure g-being provided as the removably secured thereto -;in "any conveni'ent manner-=3 as by means of the bolts f to rmit the insertlon of th blocks 0 whic 'may be mtained within the housing under com ression by t'akin'g up on-the bolts r, I desired, the housing and closure may b'eprovided with desired able in minimizing between which the rubber block is retained and if desired, co-opera-ting seats d may also be provided on the ends of the spring. In this manner the block may be easil retained under internal static pressure w ereby the strength, resiliency and wearing qualities of the block are improved. Midway between its ends the spring (1 is adapted to be secured to the mid portion of the spring k which is in turn connected at its ends to the side'frame member a. In the illustrated embodiment a bracket 2' is adapt ed to be secured to the 1" side frame member adjacent the ends of the spring and this bracket is formed with an open side z" into which the end of the spring extends. To the overturned portion a of the bracket is adapted to be secured a casting i constituting the outer face of a housing for a rubber block connection similar to that described in connection with the spring (1, a closure for the housing being indicated at 7'.

The lower spring (1 is adapted tobe secured at its mid-point to the mid-point of the upper spring it through a connection involvin the use of yielding non-metallic materia To this end, a housin k is carried as by suitablebolts k with t e upper s ring and this housing is formed with comp ementary 7 seats is, k, respectively between which, and

co-operatin seats (1 carried with spri d are adapts to be interposed blocks'of yiee ding non-metallic material, the block 2 ing disposed between the upper seat d and the seat and the block mbeing disposed be tween the lower seat d and t e seat is. It will be observed that seat d is formed with a projectin portion (1 which is adapted 'to be en agedfi: portions of the block Z to'further t e rigi connection of the seat d with the block. Blocks 1 and m areplaced under the desired internal static pressure by means of appropriate bolts serving to draw the cooperatin seats together. Extending be-' tween the ousing k on the respective sides of the vehicle and secured thereto in any convenient manner is a" stabilizin' strut n which passes through apertures a 1n the respective side frame members. a." SinOethe springs are interconnected at their midpoints it will be a parent that the stabilizing strut n is dispose in 'substantiallythe plane of pivotal movement of the springs. In this manner the strut does not interfere with the provision for universal movement of the axle with res ct to the. frame and yet afiords the egree of strength and rigidity.

The action of the improved suspension will be clear from the foregoifig description.

The yielding connections at five points indicated at each side of the vehicle provide a degree of flexibility-which permits univer-g sal movement with respect to the connected element. This action as particularly desirwhen vehicle,

as a dual axle vehicle, changes direction in which event the wheels tend to continue their line of travel when the chassis is constrained to change its direction through the steering means. The cushion connections provided not only yieldingly constrain the wheels to change their direction but in so doing store ufieenergy therebetween which is released a r the turning movement has ceased as a means for quickly alignin the wheel with the new direction of trave While providing for the maximum spring capacity by the particular relationship of the springs described on each side of the frame undesirable movements of the structure as a whole in a transverse direction with respect .to the chassis frame is minimized by the use of the strut.

Changes in matters of desl may be made w1thout departing from t e spirit of the invention.

What I claim is:

1. .In a motor vehicle, in combination with a plurality of axles and a chassis, a spring suspension therefor including, uponeither side of the vehicle, a plurality of springs connected with each other and with the chassis and axles respectivel yielding non-metallic connections for sai sprin interposed operatively at oints between t e respectivev springs and a es and chassis whereby adegree of universal movement of the axles with respect to the chassis is afforded, and stabilizmg means between the connections between the springs on the respective sides of the vehicle. I

2. In a motor vehicle, in combination with a plurality of axles and a chassis, a spring suspension therefor-including a spring connected at its ends to the axles, a spring connected at its endsto the chassis, connections between the springs at their mid-points and stabilizing means extending between said last named connections on the respective sides of the vehicle.

3.. Ina motor vehicle, in combination a plurality of axles and a chassis, a 'sp sus nsion therefor at either side of the vehic e and including. a spring, yieldingnonmetallic connections between the ends of said spring and the axles, a second-sgering, yield I tween the 1n non-metallic connectionsen .thereof and the chassis, a yielding nonmetallic connection between said springs at their mid-points, and a stabilizing-strut ex-- tending between the last named connections on either side of the vehicle.

4. In a motor vehicle, in combination with a plurality of axles and a chassis, a sprmg sus nsion therefor including; housin carwiththe res tive axles and having an with open'side into w ichthe ends of one spring extend respectively block of 'elding nonmetallic material within the housings and engaging the ends of the respective springs, housings carried with-the chassis frame and having openssides respectively into which the ends of another ring 'extend, blocks of yielding non-meta 'c material disposed between the housingsrespectively and engaging the ends of said last named springs, a housing carried at the midpoint of thelast named spring and formed withan opening'through whioh the first named spring extends and yieldlng non-metallic material disposed within the housing and engagi the second named spr This s iization signed this l2th fiay of August D. 1924.

AZOR 1). ROBBINS. 

